Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 230049 21 found under Switch Reed by A D Data Systems Inc Sub Techtran. The National Stock Number assigned to this part is 5930013635687, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 230049 21.